Mitchell: You know my dad used to say "if it matters to someone, it matters."
Gibbs: Smart guy.

Quinn: Left behind some scorned women, huh, Gibbs?
Gibbs: I have no comment.

Get to work. Probie.

If feels like you're being played, you probably are. (Season 9, Episode 1)

Rule #36

Gibbs: Where are your parents? Your mother? Father?
Elina: Sold me to man.
Gibbs: What man?
Elina: Husband. Old. Like you.

Deputy Director Craig: Rest assured. This is an interim assignment. I have no intention of taking Leon's job. You and I---
Gibbs: Deputy Director Craig. I've got your back.

Tony: Such a shame. Vintage 62 Telecaster.
Gibbs: Yeah. Real tragedy.
Tony: Yeah, cause--the dead people are a shame too. It's just....oh look, it's McGee!

Gibbs: Are you doing okay?
Abby: I was this close to violating one of my most sacred principles.
Gibbs: But you didn't. That bomb was fake.
Abby: That's because I knew you were coming. I just knew it. But what if I didn't? What would I have done?
Gibbs: You'd have done the right thing, Abs. Whatever that is. I don't know much, but I know that.

I'm positive that NCIS is being set up. Sending you out here was not about Lieutenant McBride. It was about separating you from your team.

Parsons

Gibbs: So do we? Lay off?
Vance: The man killed my wife, Gibbs.

Gibbs: What are SecNav's orders?
Vance: Now that we have Parsa - press him for intel. Enough to disable his entire terrorist network.
Gibbs: How hard?
Vance: Whatever it takes.

Vance: Your personal connection to Agent Donneget was unknown inside NCIS, present company excluded, per your son's request. Ned didn't want anyone to know about his government pedigree.
Gibbs: He wanted the respect of his co-workers, that he was a good agent.
Vance: And he was a damned good one.
Teague: And that was very Ned. He didn't want people to know where he came from.

NCIS Quotes

McGee: All right. Well you should probably know that Abby and I used to date?
Bishop: Ew. Like, each other?
McGee: Yeah.
Bishop: Wait - isn't that a violation of rule 12, never date a....
McGee: It was a long time ago. After we'd broken up, one night I went to her lab. Found a scribbled piece paper; a list. Potential boyfriends had to fulfill certain conditions by a pre-arranged date or else, goodbye.
Bishop: Such as.
McGee: Things started off relatively normal: opening the door for her, flowers, putting the seat down. Then around number 8, it gets uh...
Bishop: What?
McGee: Does she know you have these?
Bishop: Does she know you have these?
McGee: Yeah she wasn't happy when she found out.
Bishop: These are all very specific.
McGee: Yeah.
Bishop: These ideas apply to you?
McGee: No those rules weren't in place when we were together. At least I don't think so.
Bishop: What's with the two month cutoff? Abby's sabotaging herself. I've seen stuff like this before. We have to talk to her.

I'm more of a Super-Mario guy, myself.

Captain Wescott